National Instruments Introduces Industry’s Highest Performance PXI Digitisers

Co-developed with Tektronix, the world’s leading manufacturer of oscilloscopes, the NI PXIe-5186 digitiser employs Tektronix Enabling Technology to achieve up to 5 GHz bandwidth and 12.5 GS/s sample rates. The company also announced the NI PXIe-5185, which delivers 3 GHz bandwidth along with 12.5 GS/s sample rate. Both digitisers are part of the National Instruments PXI-based hardware and software platform, which provides optimised performance for automated test applications.

“We are excited about our work with Tektronix to jointly develop a product that combines the strengths of both companies: Tektronix for high-speed digitisation and NI for software-defined instrumentation,” said Dr. James Truchard, President, CEO and Cofounder of National Instruments. “These new digitisers further demonstrate the impact of Moore’s Law on test applications, bringing higher performance to smaller footprints such as PXI.”

Proprietary Tektronix performance oscilloscope ASICs in the new digitisers provide the foundation for high-speed signal acquisition with low noise and high linearity, and are based on the highly-reliable IBM 7HP SiGe process. An example of the superior signal fidelity delivered by Tektronix, Enabling Technology is the incredibly low sampling jitter of the digitiser. The very low 500 fs RMS integrated jitter of the digitisers results in a remarkable 5.5 effective number of bits (ENOB) at 5 GHz. National Instruments proprietary technology delivers high-data throughput for faster test execution and precision multimodule timing and synchronisation for building high-channel-count, integrated test systems. Designed for the 3U PXI Express platform, the digitisers can stream at rates as fast as 700 MB/s and synchronise channels on multiple modules to within160 ps resolution. These capabilities make the digitisers ideal for applications such as automated production test, semiconductor ATE and high-energy physics measurement systems.

“As the world standard in oscilloscopes, Tektronix is committed to delivering technology that meets our customers’ needs, including automated test users whose production test applications require a card-modular instrument format,” said Kevin Ilcisin, Chief Technology Officer for Tektronix. “Customers benefit from our industry-leading signal acquisition technology complimented by world class instrument control via National Instruments, the pioneer of the PXI standard and the world leader in instrument automation.”

The digitisers work with NI LabVIEW graphical design software for instrument control and automation, the NI LabWindows™/CVI ANSI C software development environment and Microsoft Visual Studio .NET development tools for a wide range of programming options. Engineers can program the digitisers using the NI-SCOPE instrument driver or the new LabVIEW Jitter Analysis Toolkit, which offers a library of functions optimised for high-throughput, jitter, eye diagram and phase noise measurements.